固态高压脉冲形成线研究

Research on compact solid-state high voltage pulse forming line

为了实现高压脉冲形成线小型化,开展了平板固态脉冲形成线研究。实验研究了两种作为储能介质的固态材料的高压体击穿特性、沿面闪络特性和频率响应特性,一种是特种复合材料,其相对介电常数在50-250之间,另一种是功能陶瓷,其相对介电常数在200-1 000之间。在此基础上,研制了两种平板固态脉冲形成线。特种复合介质固态脉冲形成线试验电压为3 kV左右,输出电压脉冲半高全宽（FWHM）可以达到58 ns;功能陶瓷介质固态脉冲形成线的试验充电电压超过120 kV,输出电压脉冲半高全宽为92 ns。

Some research has been conducted on making compact, portable pulse forming lines. Two kinds of dielectric are used as the energy storage materials in the pulse forming lines. They are a kind of ceramic and a kind of newly developed composite polymer. The ceramic＇s dielectric constant ranges from 200 to 1 000 and the composite polymer＇s dielectric constant ranges from 50 to 250. The characteristics of the two dielectrics are experimentally tested,such as flashover and bulk breakdown under pulsed voltage. Using the large composite polymer bulk as the dielectric, the planar Blumlein line can generate voltage pulses up to 3 kV with a duration of about 58 ns. And using the ceramic bulk as the dielectric, the planar line can generate voltage pulses up to 60 kV with a duration of about 92 ns.